System Control Expander Board Set - Sun Microsystems Sun Fire E25K Service Manual

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C H A P T E R

System Control Expander Board Set

The system control expander board set for the Sun Fire E25K/E20K systems consists
of a carrier plate that holds the hot-swappable centerplane support board and the
hot-swappable System Control (SC) board at SC0 (front) and SC1 (rear). This chapter
contains the replacement procedures for the centerplane support board. See
Chapter 6
This chapter contains the following sections:
Section 11.1, "Centerplane Support Board Replacement" on page 11-2
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Section 11.2, "Centerplane Support Board Replacement Procedures" on page 11-3
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For your protection, also observe the following safety precautions when setting up
your equipment:
Follow all cautions and instructions marked on the equipment.
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Always use proper ESD equipment and procedures when handling boards and
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components.
Never push objects of any kind through openings in the equipment as they might
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touch dangerous voltage points or short out components that can result in fire or
electric shock.
Refer servicing of equipment to qualified personnel.
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for the SC replacement procedures.
Section 11.1.1, "Centerplane Support Board LEDs" on page 11-2
Section 11.2.1, "Isolating a Failed Centerplane Support Board" on page 11-4
Section 11.2.2, "Powering Off a Centerplane Support Board" on page 11-4
Section 11.2.3, "Removing a Centerplane Support Board" on page 11-4
Section 11.2.4, "Installing a Centerplane Support Board" on page 11-6
Section 11.2.5, "Powering On a Centerplane Support Board" on page 11-7
Section 11.2.6, "Verifying a Centerplane Support Board" on page 11-7
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